CN208058748U - A kind of specular removal Zoom lens unit based on reflector - Google Patents
A kind of specular removal Zoom lens unit based on reflector Download PDFInfo
- Publication number
- CN208058748U CN208058748U CN201821196611.8U CN201821196611U CN208058748U CN 208058748 U CN208058748 U CN 208058748U CN 201821196611 U CN201821196611 U CN 201821196611U CN 208058748 U CN208058748 U CN 208058748U
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- Prior art keywords
- light
- lens
- light source
- reflector
- zoom lens
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Abstract
The utility model discloses a kind of specular removal Zoom lens unit based on reflector, including mobile unit and fixed cell, the mobile unit includes lens, the fixed cell includes light source and reflexed light ring, for along the gradual reflective chamber of increased circular platform type of light direction size inside the reflexed light ring, the reflexed light ring interior surface is reflective surface, the lens are arranged in the reflective chamber interior of circular platform type, one end smaller in the reflective chamber diameter of the circular platform type is arranged in the light source, and there are gaps between the light source and lens.The utility model can improve the interstice coverage of lens and light source, improve the utilization ratio of light, reduce secondary hot spot.
Description
Technical field
The utility model is related to Zoom lens unit field more particularly to a kind of specular removal zoom lens based on reflector
Unit.
Background technology
Existing zoom lens are by adjusting the mounting distance between LED and lens, to realize different light distributions in the market
Angle, usually there are wide-angle specification and low-angle specification, the zoom lens of wide-angle specification, the mounting distance of lens and LED
Smaller, i.e., lens are closer from LED, and since LED light-emitting surfaces are larger, then the hot spot that intermediate convex lens part is formed is larger, eventually
Cause the secondary hot spot of whole hot spot larger；The mounting distance of the zoom lens of low-angle specification, lens and LED are relatively large, i.e.,
Lens farther out from LED, since LED light-emitting surfaces are larger, have part light not reach lens, this will cause the whole efficiency of system inclined
It is low, and this part light may form aperture, influence whole hot spot, while the secondary hot spot of whole hot spot is larger.
Utility model content
The utility model is intended to provide a kind of specular removal Zoom lens unit based on reflector, can improve lens and light
The interstice coverage in source improves the utilization ratio of light, reduces secondary hot spot.
In order to achieve the above objectives, the utility model is realized using following technical scheme：
The utility model discloses a kind of specular removal Zoom lens unit based on reflector, including mobile unit and fixed list
Member, the mobile unit include lens, and the fixed cell includes light source and reflexed light ring, are along light extraction side inside the reflexed light ring
To size, gradually the reflective chamber of increased circular platform type, the reflexed light ring interior surface are reflective surface, and the lens are arranged in round platform
The reflective chamber interior of type, the light source are arranged the small end in the reflective chamber of the circular platform type, exist between the light source and lens
Gap.
Preferably, the lens light-emitting surface includes the first light-emitting surface and the second light-emitting surface, and first light-emitting surface is that edge goes out
The cambered surface of light direction protrusion, second light-emitting surface are the circular planes coaxial with lens；The lens lean on one face cloth of close to sources
Several diameters gradually increased profile of tooth ring coaxial with lens is set, the lens are the first incidence surface by close to sources one side middle part,
Cambered surface of first incidence surface to light source direction protrusion.
Preferably, the profile of tooth ring height increases with the tooth form ring diameter and is increased.
Preferably, first light-emitting surface and the first incidence surface are coaxially disposed, first incidence surface and the first light-emitting surface
Diameter is equal.
Preferably, micro-structure is arranged in the reflective surface.
Preferably, the micro-structure is plaited surface.
Preferably, the lens centre axis is overlapped with the reflective chamber central shaft of the circular platform type, and the light source is located at described
On the axis of lens centre.
Preferably, inside positioning convex platform is arranged close to light source one end for the reflective chamber of the circular platform type, and the reflexed light ring is remote
Outside positioning convex platform is set from light source side.
Preferably, the light source is LED.
The beneficial effects of the utility model：
1, the utility model can improve the interstice coverage of lens and light source.
2, the utility model can improve the utilization ratio of light.
3, the utility model can reduce secondary hot spot.
Description of the drawings
Fig. 1 is the diagrammatic cross-section of the utility model of wide-angle specification；
Fig. 2 is the diagrammatic cross-section of the utility model of low-angle specification.
In figure：1- lens, 2- light sources, 3- reflexed light rings, the reflective chamber of 4- circular platform types, 5- reflective surfaces, the first light-emitting surfaces of 6-, 7-
Second light-emitting surface, 8- profile of tooth ring, the first incidence surfaces of 9-, 10- positioning convex platforms.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality
It is further elaborated with novel.
As shown in Figure 1 and Figure 2, the utility model includes mobile unit and fixed cell, and the mobile unit includes lens 1,
The fixed cell includes light source 2 and reflexed light ring 3, and 3 inside of the reflexed light ring is along the gradual increased round platform of light direction size
The reflective chamber 4 of type, 3 interior surface of the reflexed light ring are reflective surface 5, and the lens 1 are arranged in inside the reflective chamber of circular platform type 4,
The small end in the reflective chamber of the circular platform type 4 is arranged in the light source 2, and there are gaps between the light source 2 and lens 1, described
1 light-emitting surface of mirror includes the first light-emitting surface 6 and the second light-emitting surface 7, and first light-emitting surface 6 is the cambered surface along light direction protrusion,
Second light-emitting surface 7 is the circular planes coaxial with lens 1；The lens 1 arrange that several diameters are gradual on one side by close to sources 2
The increased profile of tooth ring 8 coaxial with lens 1, the lens 1 are the first incidence surface 9 by 2 one Middle face of close to sources, and described first enters
Cambered surface from smooth surface 9 to 2 direction of light source protrusion, 8 height of the profile of tooth ring with 8 diameter of profile of tooth ring increase and increase, the lens 1
Central shaft and the reflective 4 center overlapping of axles of chamber of the circular platform type, the light source 2 are located on 1 central shaft of the lens, and described first
Incidence surface 9 is equal with 6 diameter of the first light-emitting surface, and micro-structure is arranged in the reflective surface 5, and the micro-structure is plaited surface, the lens
1, light source 2 and the reflective chamber 4 of circular platform type are coaxially arranged, and the reflective chamber 4 of circular platform type leans on the setting of 2 one end of close to sources is inside to determine
Outside positioning convex platform 10 is arranged far from 2 side of light source for position boss 10, the reflexed light ring 3, and the light source 2 is LED.
In actual use, fixed cell is mounted in light fitting base, mobile unit is mounted on to the clamp assemblies of lamps and lanterns
On, clamp assemblies are connected with driving device, by controlling the driving device, enable lens 1 along the center of the reflective chamber of the circular platform type 4
Line moves, and adjusts the gap of the lens 1 and the light source 2, and part light enters the first incidence surface 9, is reflected through the first incidence surface 9
Afterwards, it is projected after being reflected by the first light-emitting surface 6；Part light enters profile of tooth ring 8 close to the side of 1 axis of lens, is reflected through the side
Afterwards, it by offside reflection of the profile of tooth ring 8 far from 1 axis of lens, is projected after being reflected by the second light-emitting surface 7；Its remaining light is anti-through reflecting surface
It penetrates, into side of the profile of tooth ring 8 far from 1 axis of lens, after the side reflects, is projected after being reflected by 1 light-emitting surface of lens.
Certainly, the utility model can also have other various embodiments, without departing substantially from the spirit of the present invention and its essence
In the case of, those skilled in the art can make various corresponding change and deformations, but these phases according to the utility model
The change and distortion answered should all belong to the protection domain of the utility model the attached claims.
Claims (9)
1. a kind of specular removal Zoom lens unit based on reflector, it is characterised in that：Including mobile unit and fixed cell, institute
It includes lens to state mobile unit, and the fixed cell includes light source and reflexed light ring, is along light direction ruler inside the reflexed light ring
The very little gradually increased reflective chamber of circular platform type, the reflexed light ring interior surface is reflective surface, and it is anti-that the lens are arranged in circular platform type
The reflective chamber interior of optical cavity room circular platform type, the light source are arranged in the small of the reflective reflective chamber of chamber circular platform type of the circular platform type
End, there are gaps between the light source and lens.
2. the specular removal Zoom lens unit according to claim 1 based on reflector, it is characterised in that：The lens go out
Smooth surface include the first light-emitting surface and the second light-emitting surface, first light-emitting surface be along light direction protrusion cambered surface, described second
Light-emitting surface is the circular planes coaxial with lens；The lens arrange several diameters gradually increased and lens on one side by close to sources
Coaxial profile of tooth ring, the lens are the first incidence surface by close to sources one side middle part, and first incidence surface is convex to light source direction
The cambered surface risen.
3. the specular removal Zoom lens unit according to claim 2 based on reflector, it is characterised in that：The profile of tooth ring
Height increases with the tooth form ring diameter and is increased.
4. the specular removal Zoom lens unit according to claim 2 based on reflector, it is characterised in that：Described first goes out
Smooth surface is coaxially disposed with the first incidence surface, and first incidence surface is equal with the first light-emitting surface diameter.
5. the specular removal Zoom lens unit according to claim 1 based on reflector, it is characterised in that：The reflective surface
Micro-structure is set.
6. the specular removal Zoom lens unit according to claim 5 based on reflector, it is characterised in that：The micro-structure
For plaited surface.
7. the specular removal Zoom lens unit based on reflector according to any one of claim 1-6, feature exist
In：The lens centre axis is overlapped with the reflective chamber central shaft of the circular platform type, and the light source is located on the lens centre axis.
8. the specular removal Zoom lens unit according to claim 1 based on reflector, it is characterised in that：The circular platform type
Inside positioning convex platform is arranged close to light source one end for reflective chamber, and outside convex is arranged far from light source side for the reflexed light ring
Platform.
9. the specular removal Zoom lens unit according to claim 1 based on reflector, it is characterised in that：The light source is
LED。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821196611.8U CN208058748U (en) | 2018-07-26 | 2018-07-26 | A kind of specular removal Zoom lens unit based on reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821196611.8U CN208058748U (en) | 2018-07-26 | 2018-07-26 | A kind of specular removal Zoom lens unit based on reflector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208058748U true CN208058748U (en) | 2018-11-06 |
Family
ID=63982178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821196611.8U Active CN208058748U (en) | 2018-07-26 | 2018-07-26 | A kind of specular removal Zoom lens unit based on reflector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208058748U (en) |
-
2018
- 2018-07-26 CN CN201821196611.8U patent/CN208058748U/en active Active
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